serial: support 16-bit register interface for console

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Currently, 8-bit (MMIO) and 32-bit (MMIO32) register interfaces are
supported for the 8250 console, but the 16-bit (MMIO16) is not.
The 8250 UART device on my board is connected to a 16-bit bus and
my main motivation is to use earlycon with it.
(Refer to arch/arm/boot/dts/uniphier-support-card.dtsi)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Masahiro Yamada 2015-10-28 12:46:05 +09:00 • committed by Greg Kroah-Hartman

parent 004e2ed5cc

commit bd94c4077a

9 changed files with 57 additions and 13 deletions

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include/uapi/linux/serial.h

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